In a bowl whisk the yeast, sugar, water and shortening to make a paste. Add the flour and salt. Using a dough hook, mix until the dough crawls up the hook. Remove from that bowl and place in a bowl greased with olive oil. Cover with plastic wrap and let rise until double in size. Turn onto a floured surface and divide in half. Roll into balls and let rest for 15-20 minutes.

Roll out the dough onto a pizza pan or stone. Spread lots of ranch dressing over the dough. Cover with lots of cheese. Add the chicken and bacon pieces. Then cover again with lots of cheese. Bake at 425 degrees for 15-20 minutes.